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B. F. SHERMAN. Hydrocarbon Furnace.

Patented .lulyl 6,1880.

lPETER PHOTO-UTHDGRAPHEH. WASHINGTON. D C,

' UNITED STATES PATENT OFFICE.

BENJAMIN F. SHERMAN, OF BALLSTON SPA, NEW YORK.

HYDROCARBON-FURNACE.

SPECIFICATION forming part of Letters Patent No. 229,762, dated July 6, 1880.

Application filed August 29, 1879.

To all whom it may concern Be it known that I, BENJ. F. SHERMAN, of Ballston Spa, in the county of Saratoga and State of New York, have invented a new and Improved Hydrocarbon Furnace; and y I do hereby decla-re that the following js a full, clear, and exact description of the same, reference being had tothe accompanying draw 4 air-chambers rising between said pockets and communicating below with the portion of the furnace corresponding to, the ash-pit, the said air'chambers being perforated at the top and surmounted byin'cliiied hoods or sheds, which deflect the-currents of airidown upon the-surface of the saturated asbestiis.

, In the drawings, A represents the combustion-chamber of a steam-boiler furnace, the bottom of which is constructed with a series of longitudinal pockets, b, in which is placed a quantity of asbestus or other absorbent material. In thesepockets, and embedded in the asbestus, are arranged the horizontal perforated oil-pipes B, communicating, through a pump, with a suitable supply of oil. Just between the pockets b, and opening into the airspace C below, are chambers a, which open through holes d into the combustionchamber of the furnace. Just above said air-chambers, inside the furnace, are arranged also the V- shaped or double-inclined hoods e, whosefunction is to direct the blasts ot' airdown yupon the surface of the saturated asbestus.

The oil is forced into the pipe B by a pump, F, while the air is introduced under pressure from a blower through pipe D.

I am aware that it is not new in hydrocarbonfurnaces to employa series ot' pockets tilled with amass of refractorymaterial saturated with the oil, which pockets alternate with airchambers which receive air at the bottom and discharge it at the top, where it combines with the gases evolved to effect combustion. I therefore do not claim these features, except when combined with the double-inclined hoods e', surmounting the air-chambers. These hoods have their sides or wings extending obliquely down into the asbestus-poekets, and by dcecting the air-currents down upon the surface otl the asbestos contribute to the intimate mingling of' the gases and produce a more active combustion. These hoods also, by covering the perforations in the top of the air-chambers, prevent them from becoming stopped up.

Having thus described my invention, what I claim as new is- Thc hydrocarbon-furnace having elongated pockets b, opening into the combustion-chamber, alternating air-chambers a, opening into a compartment below the combustion-chaniber, and also, through openings d, into the combustion -chamber, the horizontal perforated oilpipes B, arranged in the pockets b and embedded in an absorbent material, as described, and

the inclined vhoods or sheds c, arranged above the air-inlets d, to direct the blast down upon the absorbent material in the pockets, all combined substantially as shown and described.-

B. F. SHERMAN. Witnesses:

EDWD. W. BYRN, SoLoN C. KEMON. 

